Question

3) if the incident ray fall Normally on the surface of a glass slab, the angle of incidence is
a) 90°
b) 60°
c) 30°
d) 0°
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Answer 1

Answer:

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Yes

Explanation:

a

Answer 2

Answer:

0°

Explanation:

If the incident ray fall normally then it falls on the normal,

If it falls on the normal then the angle is 0°